Static structures (e.g. – buildings) – Relatively yieldable preformed separator – Separator inserted prior to or during pouring of two...
Patent
1990-08-06
1992-02-18
Murtagh, John E.
Static structures (e.g., buildings)
Relatively yieldable preformed separator
Separator inserted prior to or during pouring of two...
52741, 52573, 404 64, 404 68, 404 74, E01C 1102, E01C 1104
Patent
active
050882562
ABSTRACT:
A concrete joint in concrete slab structures in which the joint includes an insert that is retained in centered position in a slot or recess formed in the upper surface of a concrete slab generally in alignment with a crack or fracture line extending downwardly from the slot or recess formed in the concrete slab. The bottom of the slot or recess is provided with a seal of cementitious material which extends completely across the bottom of the slot or recess and fills the crack or fracture line with the lower edge of the insert being inserted partially into the cementitious seal which is in the form of a quick setting sand and cement mixture which has high compression strength and low tensile strength and which will adhere to concrete surfaces but will not adhere to the insert. The space above the bottom seal on each side of the insert is then filled with a filler of an epoxy or similar material which encapsulates the spring clips and fills the slot or recess on both sides of the insert.
REFERENCES:
patent: 2319949 (1943-05-01), Robertson
patent: 3385017 (1968-05-01), Williams
patent: 3528733 (1971-05-01), Hurst
patent: 4346542 (1982-08-01), Tatend
patent: 4563850 (1986-01-01), Guinard
patent: 4601604 (1986-07-01), Clark
patent: 4699540 (1987-10-01), Gibbon
patent: 4784516 (1988-11-01), Cox
Face Construction Technologies, Inc.
Murtagh John E.
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